What’s the Difference Between LT1 and LT4 Crate Engines? by Chad Golen March 24, 2026 0 Key Takeaways: LT1 and LT4 crate engines share a Gen V 6.2L foundation but differ dramatically in power delivery: the LT1 offers naturally aspirated, linear response ideal for street and balanced track use, while the LT4 delivers instant, supercharged torque for high-output builds. The LT4’s factory-forged internals, integrated supercharger, and enhanced cooling make it the … Read More